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Topic: Message integrity


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In the News (Thu 10 Dec 09)

  
  Data integrity - Wikipedia, the free encyclopedia
Another aspect of data integrity is the assurance that data can only be accessed and altered by those authorized to do so.
Often such integrity is ensured by use of a number referred to as a Message Integrity Code or Message Authentication Code.
Specifically, data integrity in a relational database is concerned with three aspects of the data in a database:
en.wikipedia.org /wiki/Message_integrity   (174 words)

  
 Secure-Soft   (Site not responding. Last check: 2007-10-18)
Messages might be intercepted and modified for the purpose of changing the affects they have on their recipients.
Message integrity is ensured by attaching a message signature to a message.
The message signature is calculated by using a one-way hash algorithm to convert the message contents into a typically smaller, fixed-length message digest that is then signed (that is, cryptographically enciphered, typically using a public key mechanism).
www.secure-soft.net /j2EE13.html   (1019 words)

  
 rfc2747
Message Generation For an RSVP message sent over a secured sending interface, the message is created as described in [1], with these exceptions: (1) The RSVP checksum field is set to zero.
Message Reception When the message is received on a secured receiving interface, and is not of the type "Integrity Challenge", it is processed in the following manner: (1) The RSVP checksum field is saved and the field is subsequently set to zero.
Integrity Handshake at Restart or Initialization of the Receiver To obtain the starting sequence number for a live Authentication Key, the receiver MAY initiate an integrity handshake with the sender.
ietfreport.isoc.org /idref/rfc2747   (6237 words)

  
 Message Integrity
Message integrity is an often-overlooked problem for much the same reason that it is not generally recognized that the expression doctrine is dead.
When the message perceived by a human is composed of the same concrete parts, mixed as intended by the sender, the integrity is preserved.
Message integrity attacks are very dangerous because of their ability to destroy the value of communication for everyone who can not afford to ``defend'' their message against all possible attackers.
www.jerf.org /writings/communicationEthics/node10.html   (12819 words)

  
 Public Key Digital Signatures
This technology uses a combination of a message authentication code (MAC) to guarantee the integrity of data and unique features of paired public and private keys associated with public key cryptography to uniquely authenticate the sender [Schneier 96, Abrams 95].
Positive verification of message integrity is provided by the use of a message authentication code (sometimes called a manipulation detection code or a cryptographic checksum) that is produced by a message digest (sometimes called a data hashing) function.
The same message digest functions and public key cryptography algorithm used to process the digital signature must be used by both the sender and receiver.
www.sei.cmu.edu /str/descriptions/pkds_body.html   (1165 words)

  
 Message Integrity Code - Wikipedia, the free encyclopedia
In wireless communications the term Message Integrity Code or MIC is used to refer to a cryptographic checksum used in the handshaking process.
This is equivalent to what is often referred to as a MAC or Message Authentication Code.
The acronym MAC also stands for Media Access Control in networking.
en.wikipedia.org /wiki/Message_Integrity_Code   (90 words)

  
 RFC2747
For an RSVP message sent over a secured sending interface, the message is created as described in [1], with these exceptions: (1) The RSVP checksum field is set to zero.
When the message is received on a secured receiving interface, and is not of the type "Integrity Challenge", it is processed in the following manner: (1) The RSVP checksum field is saved and the field is subsequently set to zero.
RFC 2747 RSVP Cryptographic Authentication January 2000 An integrity handshake may not be necessary in all environments.
www.unix.org.ua /rfc/rfc2747.html   (6130 words)

  
 [No title]
Thus, the sender's counter and the receiver's counter MUST be reset (by establishing a new SA and thus a new key) prior to the transmission of the 2^32nd packet on an SA.
3.4.4 Integrity Check Value Verification The receiver computes the ICV over the appropriate fields of the packet, using the specified authentication algorithm, and verifies that it is the same as the ICV included in the Authentication Data field of the packet.
There is no requirement for the receiver to transmit any message to the purported sender in response to the detection of an auditable event, because of the potential to induce denial of service via such action.
www.ietf.org /rfc/rfc2402.txt   (5495 words)

  
 TEEN INTEGRITY
Teen Integrity is a compelling presentation of the message of sexual integrity.
Teen Integrity educates youth on the risks of premarital sex and empowers them to make positive choices about their bodies and futures.
Teen Integrity's purpose is to educate on the importance of building satisfying and mature relationships free from sexual transmitted diseases, unwanted pregnancy, and heartache.
www.teenintegrity.com   (133 words)

  
 OFX: Security Document   (Site not responding. Last check: 2007-10-18)
Authentication enables the recipient of a message to verify the identity of the sender.
Message integrity assures the recipient of a message that the message was not altered after it left the sender.
SSL provides message integrity by way of a message authentication code, which is computed using a cryptographically secure hash function.
www.ofx.net /ofx/ab_sec.asp   (244 words)

  
 GSS-API Programming Guide   (Site not responding. Last check: 2007-10-18)
Many security mechanisms can detect if messages in a message stream are received out of their proper order.
With integrity, the QOP specifies the algorithm for producing a Message Integrity Code (MIC); with confidentiality, it specifies the algorithm for both the MIC and message encryption.
Message tokens (also known as per-message tokens or message-level tokens) contain information generated by a GSS-API function from messages to be sent to a peer application.
www.hgc.edu /webgen/sysdocs/C/solaris_9/SUNWdev/GSSAPIPG/p33.html   (1129 words)

  
 [No title]
Integrity makes sure the message received is same as the sent.
For integrity, we want to know that the message we received is the same as original one without modification and delay.
But when the confidentiality is not required, and the only concern is the integrity and authentication, use public-key encrypt the message digest is a better and “cheaper” way to provide the security service.
www.cs.ndsu.nodak.edu /~wzhao/homework2.doc   (1424 words)

  
 Web Services: Guarantee SOAP Message Integrity   (Site not responding. Last check: 2007-10-18)
In this column, the focus changes to digital signatures in WS-Security, which guarantee to the receiver that the sender really did send the message and that the message was not altered en route.
Upon receiving the message, the receiver uses the sender's public key to compute the validity of the message signature and extracts the hash value.
Using the same algorithm for determining the hash value against the message content validates that the message was untouched en route to the receiver.
www.oracle.com /technology/oramag/oracle/05-mar/o25web.html   (1132 words)

  
 [No title]
All of a message's Originator-ID and/or "Originator- Certificate:" fields are assumed to correspond to the same principal; the facility for inclusion of multiple such fields accomodates the prospect that different keys, algorithms, and/or certification paths may be required for processing by different recipients.
PEM message signatures are forwardable when asymmetric key management is employed; an authorized recipient of a PEM message with confidentiality applied can reduce that message to a signed but unencrypted form for forwarding purposes or can re-encrypt that message for subsequent transmission.
If a message's originator addresses a message to a list name or alias, use of an IK associated with that name or alias as a entity (IK-per-list), rather than resolution of the name or alias to its constituent destinations, is implied.
www.rfc-editor.org /rfc/rfc1421.txt   (11388 words)

  
 RFC 2747 (rfc2747) - RSVP Cryptographic Authentication
The INTEGRITY object of each RSVP message is tagged with a one-time-use sequence number.
An integrity handshake may not be necessary in all environments.
Subsequent RSVP messages use the key identifier to retrieve the cached key (and optionally other identity information) instead of passing tickets from sender to receiver in each RSVP message.
www.faqs.org /rfcs/rfc2747.html   (6092 words)

  
 DBMS - June 1996 - Server Side
For example, I want to have different error messages when the constraint is violated because of the insertion of a row in the foreign table and when it is violated because of the deletion of a row from the primary table.
Oracle returns a default, system-generated message to the application when an operation is restricted, and it generates default names for unnamed constraints.
This means that you must use a generic message that is applicable to all four of the actions that may violate the constraint.
www.dbmsmag.com /9606d17.html   (3148 words)

  
 webservices.xml.com: Web Services Security, Part 2
The digest value can be used to verify the integrity of a message; that is, to ensure that the data has not been altered while on its way from the sender to the receiver.
The XML firewall checks that the message as received is identical to the one that the requester intended to send.
If the message integrity is found to be in order, the XML firewall reads the requester's identification information from the SOAP request and makes sure that the user is really a trusted business partner.
www.xml.com /pub/a/ws/2003/04/01/security.html   (1341 words)

  
 IPsec - Wikipedia, the free encyclopedia
In transport mode only the payload (message) of the IP packet is encrypted.
In some countries message encryption is prohibited by law and ESP protocol can not be used.
Authentication Header (AH) is intended to guarantee connectionless integrity and data origin authentication of IP datagrams.
en.wikipedia.org /wiki/IPSEC   (1509 words)

  
 Message Authentication with One-Way Hash Functions - Tsudik (ResearchIndex)   (Site not responding. Last check: 2007-10-18)
Abstract: Fast message integrity and authentication services are very important in today's high-speed network protocols.
Current message authentication techniques are mostly encryption-based which is undesirable for several reasons.
In this brief paper, we introduce encryption-free message authentication based entirely on the use of one-way hash functions.
citeseer.ist.psu.edu /tsudik92message.html   (474 words)

  
 Integrity Lightspeed Information For Current Subscribers
If you select the digest option, all Lightspeed messages for a single day will be delivered to you as a single combined message at 6:00 every morning.
If you are replying to a message previously posted on the list, please do not include the entire original message in your reply.
Large messages may be divided in two or more messages.
www.integrityusa.org /lightspeed/current.htm   (1065 words)

  
 Wireless Glossary: Temporal Key Integrity Protocol (TKIP)   (Site not responding. Last check: 2007-10-18)
The Temporal Key Integrity Protocol, pronounced tee-kip, is part of the IEEE 802.11i encryption standard for wireless LANs.
TKIP is the next generation of WEP, the Wired Equivalency Protocol, which is used to secure 802.11 wireless LANs.
TKIP provides per-packet key mixing, a message integrity check and a re-keying mechanism, thus fixing the flaws of WEP.
www.devx.com /wireless/Door/11455   (67 words)

  
 Integrity Home
A DVD of the Integrity Eucharist during General Convention 2006 is now available.
Integrity Lauds New Bishop of California’s Policy on Blessings
Integrity Congratulates Mark Beckwith on Election as Bishop of Newark
www.integrityusa.org   (198 words)

  
 City of Toronto: Message from Integrity Commissioner
Toronto is the first municipality in Canada to establish the office of Integrity Commissioner.
The Integrity Commissioner's principal function is the cultivation of an increased awareness on the part of City Councillors of their legal and ethical responsibilities as contained principally in the City's Code of Conduct (PDF file).
To promote the achievement of that goal, City Council has charged me with providing Councillors with educational opportunities to better familiarize themselves with the details of the Code of Conduct, and with being available to give advice to Councillors individually and collectively as to their obligations under that Code.
www.toronto.ca /integrity/mullan-message.htm   (285 words)

  
 You are what you rank.: Law Vault Message Board (Integrity Is The Key To Success)
Once your integrity as a team member is placed in question you are finished.
But I won't work with them, their teams frequently disintegrate, and their departments tend to be less productive than departments of team leaders with integrity.
If the original poster decides to doctor her transcript that is her business, but if it is discovered it will undermine her integrity and her career.
www.vault.com /messages/Law/Law499163.html   (231 words)

  
 Cryptology ePrint Archive   (Site not responding. Last check: 2007-10-18)
We define a new mode of operation for block encryption which in addition to assuring confidentiality also assures message integrity.
In contrast, previously for message integrity a separate pass was required to compute a cryptographic message authentication code (MAC).
The new mode of operation, called Integrity Aware CBC (IACBC), requires a total of m + log m block encryptions on a plaintext of length m blocks.
eprint.iacr.org /2000/039   (127 words)

  
 sci.crypt: Re: OTP and message integrity.
Previous message: R3769: "Re: PRNG from ratios of polynomials mod n"
In reply to: Mark Wooding: "Re: OTP and message integrity."
Without the keys, the message couldn't be decoded.
www.derkeiler.com /Newsgroups/sci.crypt/2003-06/0843.html   (935 words)

  
 sci.crypt: Re: OTP and message integrity.
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]
message with the OTP is sufficient for IND-CPA (i.e., secrecy against
Note that both parts are necessary for integrity.
www.derkeiler.com /Newsgroups/sci.crypt/2003-06/0854.html   (1103 words)

  
 Lawn & Landscape Magazine :: News :: GIE Media Strives To Ensure Message Board Integrity   (Site not responding. Last check: 2007-10-18)
Since they were introduced in September 2000, GIE Media's message boards have become popular virtual communities in which industry professionals gather to ask questions, give advice and share experiences with one another.
GIE Media, acting in accordance with the PCTOnline Message Board’s Terms of Use, took appropriate action by deleting said individual’s offensive posts, informing him of his violations, and finally blocking his IP address.
“Our message boards were designed to be educational resources for our customers, providing a valuable venue for the exchange of information with the goal of educating and enhancing the professionalism of our readers throughout the United States and the world,” added Bob West, editor/publisher, Lawn and Landscape Media Group.
www.lawnandlandscape.com /news/news.asp?ID=1272   (483 words)

  
 Cotse - Connected: An Internet Encyclopedia - 2. Message Integrity Check Algorithms
This section identifies the alternative algorithms that shall be used to compute Message Integrity Check (MIC) values for PEM messages.
Character string identifiers and ASN.1 object identifiers are assigned for incorporation in encapsulated "MIC-Info:" and "Key- Info:" header fields to indicate the choice of MIC algorithm employed.
It is a sender option as to which alternative is employed on an outbound message.
www.cotse.com /CIE/RFC/1423/3.htm   (211 words)

  
 Cotse - Connected: An Internet Encyclopedia - 9.2 Authentication and Message Integrity
Cotse - Connected: An Internet Encyclopedia - 9.2 Authentication and Message Integrity
Authentication and message integrity are not defined in the current specification of RTP since these services would not be directly feasible without a key management infrastructure.
It is expected that authentication and integrity services will be provided by lower layer protocols in the future.
www.cotse.com /CIE/RFC/1889/44.htm   (177 words)

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